[ScrollTimeline] Remove duplicate test

scrolltimeline-creation-no-document.html was replaced with
external/wpt/scroll-animations/constructor-no-document.html, but the
original file was not removed.

Bug: 911254
Change-Id: Ie61f47137feaab61112d73c0514c6595b9c264d6
Reviewed-on: https://chromium-review.googlesource.com/c/1365080
Reviewed-by: Yi Gu <yigu@chromium.org>
Commit-Queue: Stephen McGruer <smcgruer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#614469}
1 file changed